Question

Which structures in the eye do not have their own blood supply and therefore rely on diffusion of oxygen and nutrients from adjacent tissue or fluid? What advantage does this avascularity confer?

Answer 1

The lens and cornea do not contain their own blood supply and therefore rely on diffusion of oxygen and nutrients from the adjacent aqueous and vitreous fluid. Cornea transplant is very easy and not complicated like that other organ transplant in the body.